Cost to Repipe a House (2026): PEX vs Copper
Whole-house repipe costs in 2026 — PEX vs copper, by number of bathrooms and home size, plus the drywall and labor costs that make up most of the bill.
A repipe is one of those repairs homeowners dread on price alone — but the number you're quoted swings enormously depending on the pipe material, your home's size, and how much wall a plumber has to open to reach the old lines. This guide breaks the cost down the way plumbers actually bid it — by material, by bathroom count, and by line item — so you can read a quote line by line, compare PEX against copper honestly, and know exactly where your money goes.
The short answer
A whole-house repipe typically costs $1,500 to $15,000 in 2026, averaging about $7,500. A small one- or two-bath home in PEX can land near $2,000–$6,000; a large four-bath home in copper can pass $15,000–$20,000. The pipe itself is usually only 10–25% of the bill — labor and drywall repair are the rest.
The most useful thing to understand before you read a single quote is that "repipe" means replacing your home's pressurized water-supply lines all at once — see repipe in our glossary — not patching one leak. That's why the price is dominated by labor and wall repair, not the tubing.
Cost to repipe a house by material
Material is the first big lever. Here are typical installed 2026 ranges per linear foot, plus a whole-home total for an average single-family house. Copper costs more per foot and takes longer to install, so the gap at the project level is even wider than the per-foot numbers suggest.
| Pipe material | Cost per linear foot | Typical whole-house total | Lifespan |
|---|---|---|---|
| PEX (cross-linked polyethylene) | $0.40 – $2 | $2,000 – $8,000 | 80 – 100 years |
| CPVC | $0.50 – $1 | $3,000 – $9,000 | 50 – 70 years |
| Copper | $2 – $8 | $5,000 – $15,000+ | 50 – 100 years |
PEX wins on price and install speed; copper wins on heat tolerance, recyclability, and resale perception. For most homeowners, PEX delivers the same reliable water at a meaningfully lower total.
PEX vs. copper at a glance
The price gap is real, but it's not the only thing that should decide your repipe. Here's the honest trade-off, side by side.
PEX — the value pick
Best for most repipes
- Cheaper to buy and install — flexible tubing needs far fewer fittings and less labor time.
- Won't corrode and resists scale and chlorine; handles freeze-and-thaw better than rigid pipe.
- Color-coded hot/cold lines make future repairs simple.
- Watch-outs: rodents can chew it, it can't run outdoors in sunlight (UV), and some buyers still prefer metal.
Copper — the premium pick
When longevity and resale matter most
- 50–100 year lifespan and a proven, time-tested track record.
- Heat-tolerant and fully recyclable, with no concern about chemicals leaching.
- Strong resale perception — appraisers and buyers know it.
- Watch-outs: two to four times the material cost, slower to install, and can develop pinhole leaks in acidic water.
Repipe cost by number of bathrooms and home size
Plumbers price largely by fixture count and pipe run, which scales with bathrooms and square footage. These are typical 2026 ranges for a single-story home; two-story homes and extra fixtures (second kitchen, wet bar, outdoor spigots) push every figure toward the high end.
| Home size | PEX repipe | Copper repipe |
|---|---|---|
| 1–2 bath / under 1,500 sq ft | $2,000 – $6,000 | $4,000 – $10,000 |
| 3 bath / ~1,500–2,500 sq ft | $4,000 – $9,000 | $8,000 – $15,000 |
| 4+ bath / over 2,500 sq ft | $7,000 – $13,000 | $10,000 – $20,000+ |
For the most-searched case — a 3-bedroom, 2-bath, ~1,500 sq ft single-story home — budget roughly $2,300 to $5,100 in PEX, the figure cited by major cost surveys for that exact profile, and noticeably more in copper.
Repipe cost per fixture
Many plumbers quote — or at least sanity-check — a repipe per fixture rather than per foot, because fixtures are what actually drive the pipe runs and labor. A "fixture" here means each water-using point: every sink, toilet, tub, shower, dishwasher, washing-machine hookup, water heater, and outdoor spigot.
A quick way to estimate or audit a quote: count your fixtures, then divide the whole-house total by that number. Most jobs land around $500 to $2,000 per fixture, all-in (pipe, labor, and wall patching).
| Fixtures | Typical PEX total | Typical copper total |
|---|---|---|
| 6–8 (small 1–2 bath home) | $3,000 – $6,500 | $5,000 – $11,000 |
| 9–12 (3 bath home) | $4,500 – $9,500 | $8,000 – $15,000 |
| 13+ (4+ bath home) | $7,000 – $14,000 | $11,000 – $20,000+ |
If a bid divides out to far less than ~$500 per fixture, ask what's missing — it's usually the drywall repair or the permit. If it's far more, ask what's making access so difficult.
What changes the price most
Two identical-looking homes can get repipe quotes thousands of dollars apart. These are the factors that move the number — and the ones worth asking a plumber about before you accept a bid.
- Pipe access (the biggest swing): An unfinished basement or open crawlspace is fast and cheap to work in. A finished, two-story home on a slab — where lines run inside finished walls and ceilings — means far more cutting, patching, and labor.
- Number of stories: Routing supply lines up to a second floor adds length, labor, and drywall repair on every level the pipes pass through.
- Fixture count: More bathrooms, a second kitchen, a wet bar, a hot tub, or outdoor spigots all add runs and connections.
- Material choice: Copper's higher per-foot cost and slower install compound into a much larger gap at the project level.
- Wall finishes: Tile, plaster, or stone walls cost more to open and restore than standard drywall.
- Region and permits: Local labor rates, permit fees, and inspection requirements vary widely by city.
Where the money actually goes
The biggest surprise on most repipe quotes is how little of it is the pipe. A repipe is really three jobs stacked together: buy the material, pay the labor, and fix the walls afterward.
- Pipe material (~10–25% of the total): The PEX or copper tubing and fittings. Even on a copper job, the metal is rarely the largest line.
- Plumber labor ($675–$3,000): A typical repipe is about 15 hours of skilled work — running new lines, cutting access, and removing the old pipe. Plumbers charge $45–$200 per hour depending on region and expertise, though most quote the job as a flat bid.
- Drywall and paint repair: Reaching hidden pipes means opening walls and ceilings, then patching, texturing, and repainting. This is frequently a separate contractor and a common source of budget surprises — confirm who's responsible before you sign.
- Permits and inspection ($50–$500, plus $250–$1,200 for a pre-job inspection): Repiping touches your water system, so a permit and inspection are almost always required and protect your resale.
- Water main or extras ($600–$2,500): If the line from the street is also failing, replacing it while the crew is there saves a second mobilization.
A bid that looks dramatically cheaper than the others is usually missing the wall repair, the permit, or both — exactly the costs that resurface later. The same dynamic that hides water damage is why preventing water damage at home starts with knowing what's behind your walls.
Why a house needs a repipe in the first place
Repiping is almost never about a single leak — it's about a whole-system material that's failing everywhere at once. Three culprits drive most jobs.
The pipe materials that force a repipe
System-wide failures, not one bad spot
- Galvanized steel — common before the 1960s; it rusts from the inside, chokes your flow, and is a leading cause of low water pressure.
- Polybutylene (Poly-B) — gray plastic from ~1978–1997 that degrades from chlorinated water and was the subject of a ~$1 billion settlement. See polybutylene.
- Recalled Kitec — a brass-fitting/plastic system that corrodes and is now a known insurance and resale red flag.
- Repeated pinhole leaks in aging copper, or chronic discolored, metallic-tasting water.
Signs it may be time
Symptoms worth a plumber's inspection
- Pressure that keeps dropping across the whole house, not just one fixture.
- Rusty, brown, or metallic water, especially first thing in the morning.
- Recurring leaks in more than one location within a year or two.
- Visible corrosion or flaking on exposed pipe at the water heater or in the basement.
When the failures are system-wide, patching one section just moves the next leak down the line. If you're not sure whether your pressure problem is the pipes or something simpler, start by learning how to test your water pressure — it's a five-minute check that tells you whether to call a plumber.
Partial vs. whole-house repipe
You don't always have to do everything at once. A partial repipe — replacing just the failing branch, say the hot-water lines to two bathrooms — can cost a fraction of a full job and makes sense when the rest of the system is sound and a different material. But for polybutylene, galvanized, or Kitec, partial work is usually a false economy: the material you leave in place is degrading on the same timeline, so you'll be back inside a few years paying for access and wall repair a second time. When the whole system is the same failing material, a whole-house repipe is almost always the cheaper path over any multi-year window.
How to save money on a repipe
A repipe is a big bill, but several levers can meaningfully lower it without cutting the quality that matters.
Smart ways to lower the cost
Savings that don't compromise the job
- Get at least three itemized bids — pipe, labor, and wall repair listed separately so you can compare apples to apples.
- Choose PEX unless you have a specific reason to pay for copper.
- Bundle it with a remodel — if walls are already open for a renovation, the access cost is largely free.
- Handle your own paint — let the plumber patch drywall, then prime and paint it yourself.
False economies to avoid
“Savings” that cost more later
- A partial repipe of failing Poly-B, galvanized, or Kitec — the rest fails on the same clock.
- The lowball bid with no permit — it risks fines and resale problems.
- Skipping wall repair in the contract — surprise drywall costs erase the savings.
- An unlicensed handyman for a whole-house water system — leaks and liability dwarf any discount.
The maintenance that delays the bill
You can't stop pipes from aging, but you can catch the early warnings — a dropping pressure trend, a weeping fitting, a rusty stain — long before a 2 a.m. flood forces an emergency repipe at premium prices.
| Task | How often | DIY cost | Pro cost | Prevents |
|---|---|---|---|---|
| Inspect exposed supply lines for corrosion | Yearly | $0 | $150–400 | A hidden leak that rots framing before you ever see water |
| Swap rubber washer/toilet hoses for braided steel | Every 5 years | $10–30 | $80–200 | A burst hose dumping hundreds of gallons an hour |
| Test whole-house water pressure | Yearly | $10–15 | $100–250 | Missing the slow pressure drop that signals failing pipe |
| Know and test your main water shutoff | Yearly | $0 | — | A small leak becoming a whole-floor flood |
| Address the first pinhole or recurring leak | As needed | — | $150–600 | A system-wide failure forcing a full emergency repipe |
If a pipe does let go before you're ready, the first minutes matter most — keep what to do when a pipe bursts somewhere you can find it fast, because shutting off the water quickly is the difference between a repair and a renovation.
Sources
- Bob Vila — How Much Does It Cost to Repipe a House? (national averages, per-foot material costs, labor and fixture ranges)
- Wikipedia — Polybutylene (Poly-B history, chlorine degradation, Cox v. Shell Oil settlement, code removal)